ISD4004

Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations ISD4004 Series GENERAL DESCRIPTION The ISD4004 ChipCorder® Products provide highquality, 3-volt, single-chip record/playback solutions for 8- to 16-minute messaging applications which are ideal for cellular phones and other portable products. The CMOS-based devices include an on-chip oscillator, antialiasing filter, smoothing filter, AutoMute™ feature, audio amplifier, and high density, multilevel Flash storage array. The ISD4004 series is designed to be used in a microprocessor- or microcontroller-based system. Address and control are accomplished through a Serial Peripheral Interface (SPI) or Microwire Serial Interface to minimize pin count. Recordings are stored in on-chip nonvolatile memory cells, providing zero-power message storage. This unique, single-chip solution is made possible through ISD’s patented multilevel storage technology. Voice and audio signals are stored directly into memory in their natural form, providing high-quality, solid-state voice reproduction. Figure: ISD4004 Series Block Diagram August 2000 ISD/Winbond · 2727 North First Street, San Jose, CA 95134 · TEL: 408/943-6666 · FAX: 408/544-1787 · http://www.isd.com ISD4004 Series FEATURES Single-chip voice record/playback solution Single +3 volt supply Low-power consumption – Operating current: ICC Play = 15 mA (typical) ICC Rec = 25 mA (typical) – Standby current: 1 µA (typical) Single-chip durations ...